package com.my.rabbitmq.one;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * @author 林允
 * @version 1.0
 * @description: TODO
 * @date 2023/11/24 11:06
 */
// 消费者 接收消息
public class Consumer {

    // 队列名称
    public static final String QUEUE_NAME = "hello";

    // 接收消息
    public static void main(String[] args) throws IOException, TimeoutException {
        // 创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.203.129");
        factory.setUsername("admin");
        factory.setPassword("123");

        // 创建连接
        Connection connection = factory.newConnection();
        // 创建信道
        Channel channel = connection.createChannel();

        // 声明 接收消息
        DeliverCallback deliverCallback = (consumerTag, message)->{
            System.out.println(new String(message.getBody()));
        };

        // 取消消息时的回调
        CancelCallback cancelCallback = consumerTag -> {
            System.out.println("消息消费被中断");
        };

        /**
         * 接收消息
         * 参数：
         *  1.消费哪个队列
         *  2.消费成功之后是否要自动应答 true自动应答 false 手动应答
         *  3.消费者成功接收消息的回调
         *  4.消费者取消消费的回调
         */
        // 返回值是ConsumerTag
        String str = channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
        System.out.println("str = " + str);
    }
}
